辽东湾北部潜山走滑转换带特征及其对规模性储层的控制     

惠冠洲  牛成民  杨传超  张江涛  关超  王明春  赵婧 《地质论评》2024,70(1):9-19

潜山走滑转换带在渤海海域发育较为广泛,但其发育特征及控储作用研究薄弱。利用钻井、测井、三维地震等各类资料,对辽东湾北部地区构造转换带发育特征、成因机制及其对潜山规模型储层控制作用进行分析。研究认为,燕山末期左旋走滑背景下,辽东湾北部潜山发育多种类型转换带;根据走滑断层的相互作用以及转换带的形态,可以将辽东湾北部潜山转换带分为单支弯曲型和双支叠覆型两种类型;根据局部应力状态可以进一步细分为单支反“S”型、单支“S”型、双支左旋右阶以及双支左旋左阶转换带4个亚类,其中单支反“S”型和双支左旋右阶型转换带属增压型转换带,单支“S”型和双支左旋左阶型转换带属释压型走滑转换带。增压型走滑转换带提供的压扭性动力破碎作用使得潜山发育大规模裂缝型储集层,是潜山规模型储层发育的关键。  相似文献   

云南旅游业可持续发展障碍及对策   总被引：1，自引：0，他引：1  

明庆忠  管宁生 《热带地理》1998,18(4):350-355

针对云南旅游业发展的实际,指出了云南旅游业可持续发展存在着旅游业无烟工业,旅游业是抵投入,高产出的劳动密集型产业和旅游资源可永久利用等思想意识障碍,从业人员和管理人员素质低以及旅游者注重保护等行为障碍,缺乏统一规划引导和多头管理等管理体制上的障碍,还有生态环境障碍等,进而提出了要认真做好规划布局和分期分批地规范有序开发,提高公众认识水平,做好环境审计评价和管理工作,对旅游投资管理者进行资质审查与分  相似文献   

3CCD相机摄像系统光源的选择与计算     

官晟  丁永耀 《海洋科学进展》2001,19(1):74-77

设计了 1种应用于 3CCD相机摄像系统中的脉冲氙灯光源。介绍了该光源的光谱特性和触发方式 ,同时计算了其包括闪光持续期和闪光频率范围等重要参数  相似文献   

A model study of influence of circulation on the pollutant transport in the Zhujiang River Estuary and adjacent coastal waters   总被引：1，自引：1，他引：1  

WONG Lai Ah  GUAN Weibing  CHEN Jay-Chung  SU Jilan 《海洋学报(英文版)》2004,23(2):225-237

A tracer model with random diffusion coupled to the hydrodynamic model for the Zhujiang River Estuary (Pearl River Estuary, PRE) is to examine the effect of circulations on the transport of completely conservative pollutants. It is focused on answering the following questions: (1) What role does the estuarine plume front in the winter play in affecting the pollutants transport and its distribution in the PRE? (2) What effect do the coastal currents driven by the monsoon have on the pollutants transport? The tracer experiment results show that: (1) the pollutant transport paths strongly depend on the circulation structures and plume frontal dynamics of the PRE and coastal waters; (2) during the summer when a southwesterly monsoon prevails, the pollutants from the four easterly river inlets and those from the bottom layer of offshore stations will greatly influence the water quality in Hong Kong waters, however, the pollutants released from the four westerly river-inlets will seldom affect the water quality of Hong Kong waters due to their transport away from Hong Kong; (3) during the winter when a northeasterly monsoon prevails, all pollutants released from the eight river gates will be laterally transported seaward inside the estuary and transport westward in the coastal waters along the river plume frontal zone. However, pollutants released from the surface layer of offshore stations near or east of the Dangan Channel will be carried into the coastal waters of Hong Kong by the landward component of the westward coastal current driven by the winter northeasterly monsoon. But the pollutants from the bottom layer of the offshore stations will be carried away from the offshore by the bottom flow driven by the northeasterly monsoon. This implies that only surface-released matter from offshore stations will affect the water quality of the coastal waters around Hong Kong during the winter when a northeasterly monsoon prevails.  相似文献   

Analytically Derived Wind Wave Growth Relations   总被引：3，自引：1，他引：3  

GUAN  Changlong 《中国海洋工程》2002,16(3):359-368

By the use of the 3/2 power law presented by Toba combined with the significant wave energy balance equation for wind wave, wind wave growth at a limited fetch is analytically investigated. The new wind wave growth relations (WWGRs) are analytically derived with shehering coefficient and wind drag coefficient as parameters. The geometrical average of observational values of shehering coefficient and the arithmetic average of observational values of wind drag coefficient are applied to detennine the new WWGRs. Comparisons with existing empirical WWGRs are made.  相似文献   

奥运青岛帆船赛的有碍天气的基本特征分析   总被引：2，自引：0，他引：2  

李杰  吴增茂  何敏  郭敬天  岳淑红  管琴乐 《海岸工程》2002,21(4):26-33

为了适应2008青岛奥运帆船比赛气象保障以及建设青岛国际水上赛事基地的需要，着重进行了如下问题的分析讨论；（1）青岛8，9月份近岸区域风速＜3m/s天气的日变化特征及其与海／陆风环流发展的关系分析；（2）青岛8，9月份对流性降水过程特征及与之相关的阵性风；（3）上述天气现象的定时、定点、定量的客观预报方法讨论。  相似文献   

Vibrio sp.510产褐藻胶裂合酶的底物专一性分析   总被引：4，自引：0，他引：4  

江晓路  刘岩  胡晓珂  管华诗 《中国海洋大学学报(自然科学版)》2004,34(1):55-59

Vibrio sp.51 0具有很强的产生褐藻胶裂合酶的能力。本实验对该菌发酵产生的褐藻胶裂合酶经疏水色谱除去杂蛋白 ,再经灌注色谱分离得到 3个酶组分峰。经底物专一性检测 ,峰 1和峰 3对聚甘露糖醛酸和聚古罗糖醛酸均具降解作用 ,峰 2只对聚甘露糖醛酸有降解作用。园二色谱测定酶的二级结构 :峰 1结构最为复杂 ,以β-转角为最高 ,占 31 .5% ,无规线团占 2 7% ,α-螺旋占 2 5.8% ;峰2为β-折叠 ,占 95.5% ;峰 3以 60 %的α-螺旋和 40 %的无规线团形式存在。 3个分离峰的底物专一性和二级结构的差异证明了褐藻胶裂合酶蛋白的结构与功能之间的相关性。  相似文献   

双星串飞编队卫星测高模式下高度计相对定标     

管斌  孙中苗  刘晓刚  翟振和 《测绘学报》2017,46(1):44-52

提出了一种新型双星串飞编队卫星测高模式下高度计之间的相对定标方法,给出了计算高度计相对偏差的完整公式;采用Jason-2卫星数据,对相对偏差计算公式中的各误差项进行了功率谱分析以及差分序列的统计分析;以厘米级定标精度为前提,简化了相对偏差计算公式并进行了误差预估。结果表明,相对偏差中各误差项均呈现低频特性,相对偏差误差主要与两颗卫星的相对径向轨道误差、测距误差、海况偏差及两星下比较点间的水准面高差相关,单次飞行高度计之间相对偏差的精度约为1.99cm。  相似文献   

Preliminary Study on Direct Assimilation of Cloud-affected Satellite Microwave Brightness Temperatures     

Sibo ZHANG  Li GUAN 《大气科学进展》2017,34(2):199-208

Direct assimilation of cloud-affected microwave brightness temperatures from AMSU-A into the GSI three-dimensional variational(3D-Var) assimilation system is preliminarily studied in this paper. A combination of cloud microphysics parameters retrieved by the 1D-Var algorithm(including vertical profiles of cloud liquid water content, ice water content, and rain water content) and atmospheric state parameters from objective analysis fields of an NWP model are used as background fields. Three cloud microphysics parameters(cloud liquid water content, ice water content, and rain water content) are applied to the control variable. Typhoon Halong(2014) is selected as an example. The results show that direct assimilation of cloud-affected AMSU-A observations can effectively adjust the structure of large-scale temperature, humidity and wind analysis fields due to the assimilation of more AMSU-A observations in typhoon cloudy areas, especially typhoon spiral cloud belts. These adjustments, with temperatures increasing and humidities decreasing in the movement direction of the typhoon,bring the forecasted typhoon moving direction closer to its real path. The assimilation of cloud-affected satellite microwave brightness temperatures can provide better analysis fields that are more similar to the actual situation. Furthermore, typhoon prediction accuracy is improved using these assimilation analysis fields as the initial forecast fields in NWP models.  相似文献   

夏季海洋性大陆区域气候与赤道太平洋中部型海温异常的直接和间接联系   总被引：1，自引：0，他引：1       下载免费PDF全文

王悦  管兆勇  方陆俊  汪婉婷 《Acta Meteorologica Sinica》2017,75(4):552-563

利用1979-2015年NCEP/NCAR月平均再分析资料、美国国家海洋和大气管理局（NOAA）的月平均降水资料（CMAP）以及英国哈得来中心海表温度月平均资料,采用2009年Kao等定义的中部型ENSO指数,给出了夏季中部型海表温度（SST）异常指数,并分析了中部型ENSO和海洋性大陆（MC）区域气候的联系。结果表明,当夏季中部型海表温度正异常事件发生时,海洋性大陆核心区域（中太平洋）出现显著降水和气温负（正）异常,此时海洋性大陆核心区域有明显的负（正）热源异常,大气受冷却（加热）而下沉（上升）,同时潜热释放之外的非绝热加热表现为负（正）异常,易于导致降水负（正）异常。海洋性大陆区域与中太平洋间主要通过水平环流和垂直环流建立联系。（1）中部型ENSO指数显著正异常时,在对流层低（高）层,海洋性大陆区域和中太平洋间存在由关于赤道的对称气旋性（反气旋性）环流对而形成的直接联系,并使得海洋性大陆区域东部辐散（辐合）偏弱,而海洋性大陆区域西部辐散（辐合）偏强。（2）在垂直剖面上,赤道中太平洋海表温度的正异常和海洋性大陆核心区域的大气异常冷却有利于促使该地区低层赤道西风异常增强并进而利于中部型海表温度正异常的维持,并由此通过反沃克环流圈促进海洋性大陆区域下沉运动增强。此为海洋性大陆与中太平洋间的直接联系,可由皮叶克尼斯机制进行解释。而位于中太平洋与秘鲁地区的异常垂直环流亦可用这一机制进行解释。海洋性大陆与中太平洋的间接联系主要表现在由赤道外低纬和中纬度地区均存在的沿弧形路径上的垂直环流而建立的海洋性大陆与中太平洋地区的联系上。这些弧形垂直剖面上的垂直环流不仅与局地哈得来环流有关,还与热带和中纬度的罗斯贝波动有关。这些结果有利于深刻认识中部型ENSO对海洋性大陆区域气候的影响机理以及与热带外环流异常的联系。  相似文献